How do you know you are getting 4-6db gain?
WY3D
----- Original Message -----
From: kb9cry@comcast.net
To: 'towertalk'
Sent: Thursday, November 18, 2004 8:48 AM
Subject: [TowerTalk] Comtek box
I'm a chemical engineer by education and experience and have a working
knowledge of electronics, radio, and antenna design but am no expert at it. I
don't think I'm any less of a DXer than the next one and I just love my Comtek
box. I have it set up for 75M phone running Butternut HF2Vs (shortened ground
mtd verticals). On the air testing with EU stations yields the stated 4-6 dB
gain and 20DB front to back and 18 dB front to side. Each vertical has 55,
132 ft. radials and measured dump power (using Diamond Wattmeter at phasing
box) is 0% on 75, 10% on 80 CW, and also 10% on 40 (antennas are designed for
40M also and system works on 40 but doesn't have much gain or front to back or
side) and SWR in shack is always less than 1.5:1. So maybe it's not optimum
but it certainly ain't broke and therefore I don't try to fix it. Cu on the
lowbands, Phil KB9CRY
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
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_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
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